The size of the pad should be designed so that it's sufficient to provide greater portion of dynamic lift of the hull. A wider pad is more efficient, but also harder ride. Hulls with high deadrise vee will benefit more from having a pad, low deadrise hulls will not see the same benefits. For any hull/setup, pad dimensions can be optimized for the hull. Optimum width and length are sized based on hull weight, power and dynamic balance.
Here is Article on Vee-pad design .
Bookmarks